cccc cccp cccv ccee cche cchp cchr ccpe ccpp ccpr ccrc ccre ccrp cec- cece cecp ceec cepc cepe ceph cepp cepr cer- cerc cere cerp chce chch chcp chec chee cheh chep cher chev chpp chpr chrc chrp chrr cpce cpep cper cpre cpvc crcc crce crcr cre- crec cree creh crep crpc cvcc cver cvrr eccc ecce eche ecpp ecrc ecrr ecrv eeee eerc ehcc eheh eher ehre epcc epch epec epee eper eph- eppc eppp eprp ercc erce erch ercp erec erer erev erhc erpe errc erre erve ever evre hccc hcch hcpc hcrp hech heep heer hehe hepc hepe hepp herc here herp herr heve hhhh hhpc hpcc hppe hree hrpc hrpp hrrc hvcc pccc pcce pcep pcer pchp pcpp pcrc pcre pece pech pecr peec peep peer peev pehe pehr pepe per- perc pere perh perp perr perv phcc phe- phrr ppcc pper pppp pprc prcc prcp pre- prec pree prep prev rccc rcep rcvr recc rece rech recp recr reep reev rehe repe repp repr rere reve revp rhce rhcp rhee rrrr rv-c rver rvvh vche vecc vech veep veer vepe vepr ver- vere veve vhhh vrhe vver vvvv